Preparation method of anti-oxidant sturgeon fish skin gelatin film

A technology of fish skin gelatin and anti-oxidation, applied in the field of food packaging, can solve problems such as lack of food packaging films, and achieve the effects of simple and easy operation steps, good mechanical properties, and strong gas barrier properties.

Active Publication Date: 2017-02-22
安徽中信康药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the lack of food packaging film also needs to have the c

Method used

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  • Preparation method of anti-oxidant sturgeon fish skin gelatin film
  • Preparation method of anti-oxidant sturgeon fish skin gelatin film
  • Preparation method of anti-oxidant sturgeon fish skin gelatin film

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The present embodiment adopts 50g sturgeon skin gelatin, is processed by the preparation method of sturgeon skin gelatin film of the present invention, comprises the following steps:

[0032] Dissolve 50g of sturgeon skin gelatin in 1000ml of aqueous solution to form a 5% gelatin solution, heat and stir in a water bath at 30°C to fully dissolve the fish skin gelatin, and filter with single-layer filter paper;

[0033] According to the ratio of 10:1, add plasticizer glycerin to the filtrate obtained in step (1), stir until fully dissolved, and filter with double-layer filter paper;

[0034] After the filtrate obtained in step (2) is subjected to ultrasonic defoaming treatment, spread it on a clean acrylic glass plate, spread it evenly, place it on an ultra-clean workbench at room temperature for drying, take out the acrylic glass plate after 2 days, and peel off the film , placed in a desiccator for preservation to obtain a sturgeon skin gelatin film.

Embodiment 2

[0036] The present embodiment adopts 50g sturgeon skin gelatin, is processed by the preparation method of sturgeon skin gelatin film of the present invention, comprises the following steps:

[0037] Dissolve 50g of sturgeon skin gelatin in 1000ml of aqueous solution to form a 5% gelatin solution, heat and stir in a water bath at 40°C to fully dissolve the fish skin gelatin, and filter with single-layer filter paper;

[0038] According to the ratio of 15:1, add plasticizer glycerin to the filtrate obtained in step (1), stir until fully dissolved, and filter with double-layer filter paper;

[0039] After the filtrate obtained in step (2) is subjected to ultrasonic defoaming treatment, spread it on a clean acrylic glass plate, spread it evenly, place it on an ultra-clean workbench at room temperature for drying, take out the acrylic glass plate after 2 days, and peel off the film , placed in a desiccator for preservation to obtain a sturgeon skin gelatin film. In the process of ...

Embodiment 3

[0041] Determination of Thickness of Sturgeon Skin Gelatin Film

[0042]Use a thickness gauge to measure the thickness of the sturgeon skin film sample prepared in Example 1, measure the thickness of the four vertices and the central point, and take the average value, which is the thickness value.

[0043]

[0044] In the experiment, an acrylic plate was placed on the ultra-clean workbench to make it flat, and the prepared gelatin solution was spread evenly on the flat plate by using the pouring and laying method. From the thickness measurement, it can be seen that the center of the film prepared in the experiment is The difference between the position and the surrounding thickness is about 0.004mm, so it can be seen that the thickness of the film is relatively uniform.

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Abstract

Provided is a preparation method of anti-oxidant sturgeon fish skin gelatin film. The method comprises the following steps: taking sturgeon fish skin gelatin and dissolving into water, heating and stirring, making sure the fish skin gelatin dissolve completely, filtering with a single layer of filter paper by suction, adding plasticizer glycerol in the filter fluid prepared in step 1, stirring to complete dissolution, filtering with two layers of filter paper, conducting ultrasonic defoaming treatment to the filter fluid prepared in step 2, laying on clean acrylic glass plate to make it evenly spread, keeping the product in a superclean bench for drying, waiting for 2-3 days to take out the acrylic glass plate, tearing off the film, keeping in dryer for storage, thus the sturgeon fish skin gelatin film is obtained. The preparation method is simple and easily operable. The method has the advantages of easy degradation, edibility, good mechanical performance, average transparency, excellent mechanical property and strong air resistance.

Description

technical field [0001] The invention relates to the field of food packaging. In particular, it relates to a method for preparing a sturgeon skin gelatin film with natural anti-oxidation properties. Background technique [0002] With the improvement of people's quality of life, people pay more and more attention to environmental protection and food safety issues caused by plastic packaging materials, and packaging waste is a major aspect of environmental pollution. Therefore, green packaging, degradable packaging, and The development of edible packaging materials has become a research trend. [0003] Gelatin is obtained through protein denaturation of collagen. It is a macromolecular protein and has the commonality of macromolecular proteins. However, the particularity of the molecular structure of gelatin determines that gelatin has special physical and chemical properties. Gelatin has a series of excellent properties: the glue is easy to gel, sol-gel can be reversed with ...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L89/00C08K5/053
CPCC08J5/18C08J2389/00C08K5/053C08L2201/06C08L2201/08C08L2201/10C08L2201/14C08L2203/16C08L89/00
Inventor 梁承远田丹妮
Owner 安徽中信康药业有限公司
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